John l



May `1, 1923.

J. I v. WHEELER MOUNTING FOR MEASURING MACHINES AND THE LIKE Filed Deo. 2o, 1921 Patented May l, 1923.

UNITED STATES PATENT OFFICE.

JOHN L. WHEELER, F ST. LOUIS, MISSOURI, SSIGNOR TO THE MEASUREGRAPH COMPANY, OF ST. LOUIS,.MISSOURI, A CORPORATION OF DELAWARE.

MOUNTING FOR MEASURING MACHINES AND THE LIKE.

Application filed December 20, 1921.

To all whom it may concern.' f

Be it known that I, JOHN L. WHEELER, a citizen of the United States, residing in the city of St. Louis and State of Missouri, have invented new and useful Improvements in Mountings for Measuring Machines and the like, of which the following is a speciiication. This invention relates to machines such as fabric measuring and cost computing machines, which are frequently mounted upon a rail running along the counter so as to enable the machine to be moved along to any point desired. In machines of this type the fabric is measured by pulling it along the counter, and the tension in the fabric, of course, tends to slide the machine along the rail.

The general object of the present invention is to rovide a construction of this kind in which t e measuring machine or other instrument is mounted upon a guide rail in such a Way that the forces which act upon lthe machine or the rail tend to develop reactive forces between the ra`il and the -shoe which supports the instrument, thereby developing an increased frictional resistance which will prevent the machine from being pulled along the rail during the measuring movement.

Further objects of the invention willv appear hereinafter.

The invention consists in the novel features, and in the general combination of parts to be particularly described hereinafter, all of which contribute to produce a simple and elicient mounting for measuring machines and the like. A preferred embodiment of my invention will be particularly described in the following specilicatiomwhile the broad scope of my invention will be pointed out in the appended claims.

In the drawing:

Figure 1 is a plan of the measuring machine and its mounting and showing a small r segment of the counter on which the machine is mounted; and

Figure 2 is a side elevation of the machine, the rail and counter being shown in vertical section taken on the line 2 2 of Figure 1.

In the embodiment of the invention illustrated, I provide a rail 1 which may be in the form of a flat bar which is attached by short posts 2 so that it is parallel with and slightly removed from the vertical face or edge 3 of a counter 4f. The posts 2 include Serial No. 523,699.

fastening devices or screws, such as the screw 5, the head of which is countersunk into the 4mit it to pass the posts 2, and this shoe is provided with an upper groove 8 and a lower groove 9 which respectively receive the upper edge and the lower edge of the rail. The side faces 10 of these grooves operate as bearing cheeks to engage the rail directly7 without the interposition of anti-friction rollers, and hold the shoe in an upright position. The engagement between the rail and shoe is a direct sliding engagement. This shoe 6 supports an instrument such as a measuring machine 11, and this machine is so located with respect to the vertical plane of the rail 1 that the center of gravity of the machine is removed from the plane of the rail; in Fig ure 2 the vertical arrow 12 may represent the location of the center of gravity of this machine and indicates also the direction in which the weight of the machine is applied to the shoe and rail. By locating the center of gravity in this way the weight of the lochine tends to produce a rotation of the shoe in a clockwise direction around the longitudinal axis of the rail, as viewed in Figure 2. In this way a force, or forces, are developed upon the shoe which are reacted to by the side faces of the rail at the bearing cheeks 10; such a force is indicated by the horizontal arrow 13 in Figure 2. Such a force may be developed near the upper edge of the rail as well as near its lower edge, in addition to the downward pressure of the shoe which would be felt upon the upper face of the rail as indicated by the arrow 14 in Figure 2. In this way the weight of the machine operates to develop reactive forces between the rail and the shoe which operate to increase the friction which would be developed by contact between the shoe and the rail. The position (indicated by the arrow l2) for the center of gravity occurs by reason of the fact that the measuring machine Bi t 11 projects toward or Voverhangs the y counter 4 in suehafyvay Jthat the guide gap. 15 which is common in machines of this kind, and through which. the fabric is pulled, is also locatedin a position, removed from. they vertical plane of the rail, that is to say, the measuring roller 16;.fis supported in ythe ma-l chine out of line With the plane of the rail,

and hence when the fabric is beingmeasuredrl by pulling it through the gap 15v and over theV measuring roller 16,'the tensioneXerted inthe-goods-'willbe developedv in a horizontal'di'rection and in'a locationwhich may/be representedby'the arroW 17 *in Figure l1.

The force represented by the arrow 17.

tends, ofcourse, to produce a rotation of the machine in a clockwise directiony aboutv a vertical axis-passing through `the plane or` the rail, and this force operates to develop f reacting 'forces in the 4rail Y representedby the arrows 18 and 19 in Figure 1, that is tosay, the hearingcheeks AlOof the shoe arefreacted upon bythe ra-ila'on opposite sides `and ina directionto counter-balance, or Acounter-act,

the yeffect Aofthe force indicated bythe arrowv 17,; Inthis Way the reactive -forces de'- Velopedfby'the tension ofy the' fabricuinbe-V.

ing f measur'edtend toprod-uce lateral pressure onfth'esidefaces ofthevrail which assist the forces developed by the` Weight of the machine-todevelop an increased `frich tionaLresistance to a movement of theshoe along the rail.

Themachine 11vis `preferably.mounted upon the upperf-face of a pedestal 20, the lower end lof Which-may be madeW4 linte'gralvvith theshoewhich operates-as afoot forithe pedestal as Wellas -a guide shoeffor the ped-` estal-l and measuring machine Amachine-mounted in this wayvupon thev countermay be i. readily moved i by hand to I any pointonithe` counter Where 4the machine. istol be-used,but.it Will effectively resist :any tendency of the fabric, wheny itis being measured., fto pullithe machine along the counter.V

It?. is understood that. the embodimentI of the invention ydescribed lherein isonly one of the-many lembodiments my invention may take, i and. I do not .Wish .tobe `limited .in the practice of my invention nor in my claims,

vto the particular embodiment set forth.

What I claim is:

1. In a mounting for a measuring machine tolbe secured to a. counter, and Which is operated by pullingthe fabric through the ymachine,panallelmvith the edge of the counter, the combination of a rail, a shoe mounted to slidealongfthe'rail' andi havingixedbearifng. cheeks Ito engage andfslide upon the rail on its opposite sides, andJa measure` ingmachine supported on the shoenwith its 1 center of gravity disposed in a verticalrplane removed yfrlomtheplaneof the railf,yvhereby the 1' forces 'developed at the. said bearing i cheeks offthe shoe v'arereactedito by the `.said

face of., the frailfandoperate to offer-sufficient'.

frictionalresistance :ton prevent the. measizlring machine. from: being' pulled. aalonge the rail byfthe` fabric duri-ngfther.measuring..l

movement;

2.' Ina .mounting .for a measuring machine` to besecuredito a counter, and which is :011+

erated byl pulling.y the Ifabric .'through..tl1e1 machine parallel with the edge of thel coun*J ter,l the combination Vci" arail, a zshoeghaving cient; frictio'nal' resist-ance 1. toi `prevent the measuring machine. from being pulled along;

the; rail .by thei fabric drrringfthesfmeasuring movement.

In testimony. whereof, I have hereunto set'.-

my hand.y

J CHN LQ VVIIJTJELER.A 

